diff options
Diffstat (limited to 'Minecraft.World/PoweredRailTile.cpp')
| -rw-r--r-- | Minecraft.World/PoweredRailTile.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/Minecraft.World/PoweredRailTile.cpp b/Minecraft.World/PoweredRailTile.cpp new file mode 100644 index 00000000..9ebf6291 --- /dev/null +++ b/Minecraft.World/PoweredRailTile.cpp @@ -0,0 +1,187 @@ +#include "stdafx.h" +#include "net.minecraft.world.h" +#include "net.minecraft.world.level.h" +#include "PoweredRailTile.h" + +PoweredRailTile::PoweredRailTile(int id) : BaseRailTile(id, true) +{ +} + +Icon *PoweredRailTile::getTexture(int face, int data) +{ + if ((data & RAIL_DATA_BIT) == 0) + { + return icon; + } + else + { + return iconPowered; + } +} + +void PoweredRailTile::registerIcons(IconRegister *iconRegister) +{ + BaseRailTile::registerIcons(iconRegister); + iconPowered = iconRegister->registerIcon(getIconName() + L"_powered"); +} + +bool PoweredRailTile::findPoweredRailSignal(Level *level, int x, int y, int z, int data, bool forward, int searchDepth) +{ + if (searchDepth >= 8) + { + return false; + } + + int dir = data & RAIL_DIRECTION_MASK; + + bool checkBelow = true; + switch (dir) + { + case DIR_FLAT_Z: + if (forward) + { + z++; + } + else + { + z--; + } + break; + case DIR_FLAT_X: + if (forward) + { + x--; + } + else + { + x++; + } + break; + case 2: + if (forward) + { + x--; + } + else + { + x++; + y++; + checkBelow = false; + } + dir = DIR_FLAT_X; + break; + case 3: + if (forward) + { + x--; + y++; + checkBelow = false; + } + else + { + x++; + } + dir = DIR_FLAT_X; + break; + case 4: + if (forward) + { + z++; + } + else + { + z--; + y++; + checkBelow = false; + } + dir = DIR_FLAT_Z; + break; + case 5: + if (forward) + { + z++; + y++; + checkBelow = false; + } + else + { + z--; + } + dir = DIR_FLAT_Z; + break; + } + + if (isSameRailWithPower(level, x, y, z, forward, searchDepth, dir)) + { + return true; + } + if (checkBelow && isSameRailWithPower(level, x, y - 1, z, forward, searchDepth, dir)) + { + return true; + } + return false; +} + +bool PoweredRailTile::isSameRailWithPower(Level *level, int x, int y, int z, bool forward, int searchDepth, int dir) +{ + int tile = level->getTile(x, y, z); + + if (tile == id) + { + int tileData = level->getData(x, y, z); + int myDir = tileData & RAIL_DIRECTION_MASK; + + if (dir == DIR_FLAT_X && (myDir == DIR_FLAT_Z || myDir == 4 || myDir == 5)) + { + return false; + } + if (dir == DIR_FLAT_Z && (myDir == DIR_FLAT_X || myDir == 2 || myDir == 3)) + { + return false; + } + + if ((tileData & RAIL_DATA_BIT) != 0) + { + if (level->hasNeighborSignal(x, y, z)) + { + return true; + } + else + { + return findPoweredRailSignal(level, x, y, z, tileData, forward, searchDepth + 1); + } + } + } + + return false; +} + +void PoweredRailTile::updateState(Level *level, int x, int y, int z, int data, int dir, int type) +{ + bool signal = level->hasNeighborSignal(x, y, z); + signal = signal || findPoweredRailSignal(level, x, y, z, data, true, 0) || findPoweredRailSignal(level, x, y, z, data, false, 0); + + bool changed = false; + if (signal && (data & RAIL_DATA_BIT) == 0) + { + level->setData(x, y, z, dir | RAIL_DATA_BIT, Tile::UPDATE_ALL); + changed = true; + } + else if (!signal && (data & RAIL_DATA_BIT) != 0) + { + level->setData(x, y, z, dir, Tile::UPDATE_ALL); + changed = true; + } + + // usually the level only updates neighbors that are in the same + // y plane as the current tile, but sloped rails may need to + // update tiles above or below it as well + if (changed) + { + level->updateNeighborsAt(x, y - 1, z, id); + if (dir == 2 || dir == 3 || dir == 4 || dir == 5) + { + level->updateNeighborsAt(x, y + 1, z, id); + } + } +}
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